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   OpticalDisc
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| appearance as argument number 1 |
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| (diskTypeForDrive OpticalDisc OpticalDiscDrive) | ComputerInput.kif 773-773 | Optical disc drive reads or writes optical disc |
| (documentation OpticalDisc EnglishLanguage "This Class comprises several subclasses of disc-shaped data storage devices. Unless otherwise indicated, instances of all of these classes are generally consist of plastic discs incorporating one or more reflective layers of gold or aluminum, which is pitted by a laser to encode data.") | Media.kif 1129-1133 | |
| (subclass OpticalDisc DigitalDataStorageDevice) | Media.kif 1128-1128 | Optical disc is a subclass of digital data storage device |
| appearance as argument number 2 |
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| (subclass BluRayDisc OpticalDisc) | Media.kif 1187-1187 | Blu ray disc is a subclass of optical disc |
| (subclass CompactDisc OpticalDisc) | Media.kif 1154-1154 | Compact disc is a subclass of optical disc |
| (subclass DVD OpticalDisc) | Media.kif 1255-1255 | DVD is a subclass of optical disc |
| (termFormat EnglishLanguage OpticalDisc "optical disc") | domainEnglishFormat.kif 65321-65321 |
| antecedent |
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| consequent |
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| (=> (attribute ?X MiniSizeDisc) (instance ?X OpticalDisc)) |
Media.kif 1240-1242 |
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| (=> (attribute ?X StandardSizeDisc) (instance ?X OpticalDisc)) |
Media.kif 1227-1229 |
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